Question: what size are the fans and are they replaceable
Answer: Thank you for your inquiry. These fans are approximately 4 inches and are replaceable.

Question: will this fit in non-great lakes cabinets? I have chatsworth terraframe cabinets
Answer: Thank you for your inquiry,
Absolutely, the Great Lakes 7217FT-9 rackmount fan tray is compatible with any standard 19"EIA server rack; The vast majority of the Chatsworth TeraFrame Racks are standard 19"EIA mount.

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